Alright i really need advice! Help!?

Ok heres the strory. I went on vacation to florida. I met this family there from Ireland. One in the family was a girl i was interested in. So i started talkin to her and started to hang out and like her. And then i found she had a boyfriend back home but that didnt stop me. The rest of the vacation i kept hanging out with her then fell in love. The last night before i left Florida we kissed a lot after we figured we both liked each other. Now i still talk to her and she still has her boyfriend. Im wonderin and have discussd ever seein each other again. I dont know what to do? Is it worth going to Ireland and seein her again. It sucks cause most of the times if think about her i get teary. I really miss her a lot. i dont know what to do